39 lines
881 B
Java
39 lines
881 B
Java
// patterns/CommandPattern3.java
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// ©2015 MindView LLC: see Copyright.txt
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// Just implement the Runnable interface!
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import java.util.*;
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class Hello3 implements Runnable {
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public void run() { System.out.print("Hello "); }
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}
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class World3 implements Runnable {
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public void run() { System.out.print("World! "); }
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}
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class IAm3 implements Runnable {
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public void run() {
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System.out.print("I'm the command pattern!");
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}
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}
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class Macro3 implements Runnable {
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public List<Runnable> commands = new ArrayList<>();
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public void run() {
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for(Runnable c: commands) c.run();
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}
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}
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public class CommandPattern3 {
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public static void main(String args[]) {
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Macro3 macro = new Macro3();
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macro.commands.add(new Hello3());
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macro.commands.add(new World3());
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macro.commands.add(new IAm3());
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macro.run();
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}
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}
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/* Output:
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Hello World! I'm the command pattern!
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*/
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